I don't have a Maggie or Zoe so I can't compare exactly, but the Hailey is very roomy.
I've even carried a hardcover book or a kid's size thermos with my lunch in it, along with all the normal purse stuff.
But I keep thinking "I might need a book, umbrella, gloves, folding shopping bag...." and keep adding things, and then it gets so heavy it aggravates my shoulder tendonitis!
It does hang better when it's not overstuffed though.